Improvement in shade-holders foe lamps and gas-buenees



H. KNOWLES.

Lamp Shade.

N0. 66,504. Patented July 9. 1867 W/ TAKE-S658. //vI /v 708.. Z a/2i ",PETERS, PHOTO'LITHOGRAPHER, WASHINGTON. D C,

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IMPROVEMENT IN SHADE-HOLDERS FOR LAMPS AND GAS-BURNERS.

tilp .i' tlgehule taunt to in flgcsc itcttns 332mm ant muting putt at tip 5min.

.TO ALL WHOM IT MAY CONCERN:

Be it lmownthat I, HEZEKIAII Kxownns, of Brooklyn, Kings county, State of New York, have invented a new and useful Improvement in Shade-Holders for Shades of Gas-Burners, Lamps, $10.; and I do hereby-declare that the followijggis a full and correct description thereof, reference being had to the accompanying drawings, and to-thc letters of reference thereon.

My improvement"consists in making the radial arms of the shade-holder extensible and adjustable by constructing them in two parts, the part of the arm which receives the shade being made to slide on the other part of the arm which is attached to the central ring.

Figure l of the drawings is a plan view of my improved shade-holder,

Figure 2, a vertical section showing shade, central ring, and two of the arms.

Figure 3, detached view of sliding arm as stamped from the sheet metal.

Figure 4, detached View of fixed arm as struck from the. sheet metal.

Figure 5, additional fragmentary plan view showing the shade-holder as made with small ring or central support suitable for a common gas-burner.

The central supporting ring a should be made of brass or other snitablemetal, and of the proper size for the gas-burner 0i, gallery of the lamp to which it is to be applied as usual. Fig. 1- shows a large ring suitable for argand-burners or lamps, and fig. 5 a small ring suitable for ordinary gasburners. The fixed arms 6 and sliding arms 0 I make of sheet metal, struck out by dies in the forms shown at figs. S and 4. The fixed arms are each secured to thering by a tenon or riveting stem, (Z, suitable holes having been made in the ring for that purpose. The fixed and movable arms are coupled to each other by 'a sliding coupling consisting of the loops 2 on the fixed arms, and the loopsf on the movable or sliding arms, the metal at the ends of the arms forming the loops having been turned up at right angles to the arms after being cut out by the-dies and before being put together. The movable or sliding arms are connected with the fixed arms by the loops of both before the fixed arms are attached permanently to the ring or central support. Each of the sliding arms has ahooked end, g, by which it holds the shade.

There is sufficient friction in this form of sliding coupling to hold the movable arms for all 'the purposes of a shade-holdor in the position they may be placed in for any particular-sized shade. To adjust it for anothersized shade it is only necessary to move the movable or sliding arms outward ,from or inward towards the central support, as the case may be. A spring or set-screw may, however, be used to hold the arms together when adjusted, if desired. My improved shade-holder is especially adapted for holding the conical porcelain shades in general use. These porcelain or glass shades are made of various sizes by the manufacturers, and there is considerable variation of diameter of shades made and sold for the same size. Hence the utility of myimprovcd holder,.which is capable of being adapted to various sizesand variations in the same sizes of these shades.

Iclaim as of my invention and improvement in shade-holders for gas-burners, lamps, &c-

The, extensible adjustable shade-holder, consisting of movable and fixed arms combined with each other and with the central support, substantially as described.

I-IEZEKIAH KNOWLES.

Witnesses F. C. TREADWELL, JOHN A. DUNCAN. 

